US6218919B1 - Circuit breaker latch mechanism with decreased trip time - Google Patents
Circuit breaker latch mechanism with decreased trip time Download PDFInfo
- Publication number
- US6218919B1 US6218919B1 US09/525,847 US52584700A US6218919B1 US 6218919 B1 US6218919 B1 US 6218919B1 US 52584700 A US52584700 A US 52584700A US 6218919 B1 US6218919 B1 US 6218919B1
- Authority
- US
- United States
- Prior art keywords
- primary
- latch
- latching surface
- cradle
- latching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
- H01H71/525—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
- H01H2071/508—Latching devices between operating and release mechanism with serial latches, e.g. primary latch latched by secondary latch for requiring a smaller trip force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
Landscapes
- Breakers (AREA)
Abstract
A decreased mechanical trip time latching system for use in a molded case circuit breaker assembly. The latching system comprising a quick release primary latch having a first primary latching surface and a second primary latching surface. Where the second primary latching surface engages a first secondary latching surface located on an interactive secondary latch, to prevent the rotation of the quick release primary latch. The first primary latching surface engages a cradle latching surface, located on a cradle, to prevent the rotation of the cradle. Assembled to the interactive secondary latch is a trip bar. Activation of the trip bar rotates the secondary latch so that the first secondary latching surface moves out of contact with the second primary latching surface just prior to the interactive secondary latch making physical contact with the quick release primary latch. The quick release primary latch then rotates moving the first primary latching surface out of contact with the cradle latching surface thereby releasing the cradle. The cradle rotates and the operating system is activated to terminate current flow.
Description
This invention relates to circuit breaker assemblies having an improved latching system that substantially decreases mechanical trip time. The improved latching system can be utilized, but not limited to circuit breaker assemblies rated for residential and lower current industrial applications and for high ampere-rated circuit breaker assemblies.
Conventional circuit breaker assemblies utilize a thermal-magnetic trip unit to automatically sense overcurrent circuit conditions and to subsequently interrupt circuit current accordingly. It is the practice of the circuit protection industry to mount a magnet portion of the magnetic trip unit around a bimetal trip unit and to arrange an armature as part of the circuit breaker latching system. It is well appreciated in the electric circuit protection field that the latching surfaces within the circuit breakers latching system must be carefully machined and lubricated in order to ensure repeated latching and unlatching between the surfaces over long periods of continuous use.
The special machining that is required includes a time consuming polishing process or a special machining or shaving operation on the latch systems latch surfaces. The smooth low friction surfaces are required to minimize the amount of tripping force that must be applied to overcome the bias of the operating spring and the static friction on the contracting latch surfaces. The trip force is the amount of force that must be applied to the trip bar to overcome the latch spring bias and latch surface friction
In operation, a magnetic trip unit comprising an armature and a magnet is actuated upon the occurrence of an overcurrent condition. The actuation causes the armature, which is biased away from the magnet by a spring, to be rapidly driven towards the magnet so that a trip bar is activated. The thermal trip unit comprising a bimetal element senses overcurrent conditions by responding to the temperature rise on the bimetal element. When an overcurrent condition occurs over a period of time, the bimetal flexes and activates the trip bar.
Once activated, the trip bar sets in motion the activation and disengagement of a latching system comprising a primary latch, secondary latch, and a cradle. The trip bar, secured to the secondary latch, drives the secondary latch clockwise about a fixed point so that the secondary latch is moved out of contact with the primary latch. The primary latch in turn is positioned to prevent the rotation of the cradle. When the primary latch is released from the secondary latch, the cradle acts on the primary latch urging it to rotate clockwise about a fixed point. Once the primary latch is moved out of contact with the cradle, the cradle is released allowing it to rotate counterclockwise about a fixed point. As the cradle pivots the upper and lower links collapse under the biasing of an operating spring to draw a moveable contact arm containing a moveable contact to the open position. In the open position the moveable contact and a fixed contact are separated thereby terminating the circuit.
The primary latch and the secondary latch have a plurality of latching surfaces. The latching surfaces are defined as the surface of the latch that makes physical contact with any adjoining surface. The first latching surface of the secondary latch is positioned against the second latching surface of the primary latch. A first latching surface of the primary latch is positioned against the latching surface of the cradle. As previously described when the trip bar is actuated, it drives the secondary latch so that the secondary latch rotates about its pivot causing the first latching surface of the secondary latch to break contact with the second latching surface of the primary latch. Once this occurs, the first latching surface of the primary latch has a force bearing on it by the cradle at the cradle latching surface. If this force is great enough to overcome any resistant forces existing between the latching surfaces, the primary latch will rotate about its pivot point so that the first latching surface of the primary latch breaks contact with the latching surface of the cradle. Once released, the cradle rotates counterclockwise and set in motion a chain of events that trips the breaker.
Conventionally both the cradle and the primary latch are fabricated from a stamping operation followed by a shaving operation to flatten and smooth the latching surface of the cradle and the latching surfaces on the primary latch to maintain a low trip force between the cradle and the primary latch. To aid in the release of the latches there is a primary latching force provided by the operating spring. During use there is often a degradation of the latching surfaces due to wear and contaminates on the various latching surfaces. Even when the latching surfaces are prepared in an effort to minimize friction and the various springs provide a biasing force it is unpredictable if and when the latching system will be fully activated. If significant contaminates or excessive wear exists on the various latching surfaces, the latching system will not activate and result in a stalled situation between the cradle and the primary latch. In particular, once the primary latch is released by the secondary latch, the cradle through the latching surface of the cradle and supplied by provides a force on the primary latch at the first latching surface. This force must be great enough to overcome the friction forces acting between the first latching surface of the primary latch and the latching surface of the cradle. If contaminants or other sources cause the friction between these latching surfaces to become too large the first latching surface of the primary latch will not rotate and release the cradle so that the system is in a stalled situation.
Conventional circuit breakers have a size limitation imposed upon them in order to fit into panel boards of residential, office and light industrial applications. While the outer dimensions of the circuit breaker are fixed, short circuit current magnitudes available from electrical utilities have increased, requiring circuit breaker designers to seek new and improved operating and trip mechanisms which limit the energy let-through. To do this, one must minimize the current and/or the time from the onset of overload to arc extinction. One way to accomplish this is to provide an extremely fast acting circuit breaker capable of early contact separation upon detection of an overload.
It is therefore desirable to provide a molded case circuit breaker capable of exceedingly fast tripping action effective in limiting to acceptable levels let-through energy incident with a high fault current interruption. This is accomplished by utilizing an improved latching system employed to immediately release the primary latch once the secondary latch is disengaged by the actuation of the trip bar. Once the primary latch is set free it subsequently releases the cradle so that the breaker mechanism is tripped by the movement of the link system comprising an upper link, a lower link and the operating spring thereby allowing the moveable contact and the fixed contact to separate thereby terminating the circuit. This immediate release of the primary latch, upon the secondary latch disengagement, achieves contact separation in significantly shorter time than when reliance for the release of the cradle is solely dependent upon the cradle forces and minimal friction between the cradle surface and the primary latch surface.
The improved latching system comprises the primary latch, the secondary latch and the trip bar. The improved latching system is designed to function so that upon activation of the trip bar and the disengagement of the secondary latch, the primary latch, being in direct physical contact with the trip bar/secondary latch configuration is immediately released. The primary latch and the secondary latch are shaped and positioned so that once the trip bar is activated, an extension on the secondary latch acts directly on an extension on the primary latch. Therefore the secondary latch drives the primary latch clockwise about its pivot point to positively release the cradle. The timing is such that as soon as the secondary latch clears the primary latch the primary latch is also freed. The timing of the release of the cradle is immediately after the release of the primary latch from the secondary latch.
Because the trip bar/secondary latch configuration is in direct physical contact with the primary latch the mechanical trip time is decreased thereby limiting the energy let-through to an acceptable value. Additionally, the release of the cradle is no longer only dependent on the cradle forces and the finishing of the latching surfaces to reduce friction to effectuate tripping of the breaker.
Referring now to the drawings wherein like elements are numbered alike in the several Figures:
FIG. 1 is a side view of a single contact arm molded case circuit breaker shown with the contacts closed according to the prior art;
FIG. 2 is a side view of a trip bar according to the prior art;
FIG. 3 is a side view of the secondary latch according to the prior art;
FIG. 4 is a side view of the trip bar assembled to the secondary latch according to the prior art;
FIG. 5 is a side view of a single contact arm molded case circuit breaker with an improved latching system according to the present invention;
FIG. 6 is a side view of a second embodiment of a single contact arm molded case circuit breaker with an improved latching system according to the present invention;
FIG. 7 is a side view of the improved latching system according to the present invention;
FIG. 8 is a perspective view of a self actuating primary latch according to the present invention; and
FIG. 9 is a side view of a secondary latch according to the present invention.
FIG. 1 shows a conventional circuit breaker assembly of the prior art, which is generally indicated at 10. It is to be appreciated that this invention deals with one, two, three, or four-pole circuit breakers formed with one or multiple adjacent compartments for housing multiple pole units, a common operating mechanism is provided to simultaneously actuate the interrupter of each pole. For ease of illustration the Figures will show only one pole. FIG. 1 shows a circuit breaker used for lower circuit interruption applications. Although not shown, the invention can also be used in many different types of circuit breaker assemblies. When activated, the invention operates in the same manner regardless of which circuit breaker assembly in which it is mounted. Therefore, when describing the prior art, FIG. 1 will be referenced however it is to be appreciated that the improved latching system 92 can be utilized in any type circuit breaker assembly.
The circuit breaker assembly 10 includes an insulative housing 12 shown with one side of the circuit breaker removed. At one end of the housing 12 exists a line strap 14 and a line terminal screw 16. Permanently affixed to the line strap 14 is a fixed contact 18. When the circuit breaker assembly 10 is in an on mode the fixed contact 18 makes electrical contact with a moveable contact 20 which is permanently affixed to a first end 22 of a moveable operating arm 24. At the opposite end of the housing 12 exists a load lug 26 that connects with a bimetal 28 by means of a load strap 30. A braided conductor 32 electrically connects the bimetal 28 to the moveable operating arm 24.
The moveable operating arm 24 is pivotally connected at a second end 34 intermediate to a pivot 35 and pivotally connected by a pivot 37 at a distance from the second end 34 to a first end 36 of a lower link 38. A second end 40 of the lower link 38 is pivotally connected to a first end 42 of an upper link 44, which in turn is pivotally connected at a second end 46 to a cradle 48. The cradle 48 is used to mechanically interact with a latching system 68 and a trip unit assembly 50 with the moveable operating arm 24. An on-off handle 52 operatively connects with the moveable operating arm 24 by means of a handle yoke 54, a mechanism spring 56 and the upper and lower links 44, 38. The handle yoke 54 connects the mechanism spring 56 with the upper and lower links 44, 38 through an operating springs support pin 58.
Useful in detecting short circuit conditions is a magnetic trip unit 60 comprising an armature 62 and a magnet 64. When the circuit breaker assembly 10 is subjected to short circuit conditions, a magnetic attraction is immediately generated between the armature 62 and the magnet 64. Subsequently, the armature 62 is drawn in the direction of the magnet 64 which strikes a trip bar 66 thereby setting into motion the activation of a latching system 68. Additionally, useful in detecting overcurrent conditions is a thermal trip unit 70 that reacts to temperature rise on the bimetal element 28 causing the bimetal 28 to flex and strike the trip bar 66 which in turn activates the latching system 68.
The latching system 68 comprises a primary latch 72, a secondary latch 74 and the trip bar 66. When the circuit breaker assembly 10 is in the “ON” mode, the fixed and moveable contacts 18, 20 are closed so that electrical continuity is retained throughout the assembly 10 allowing the current to flow.
A cradle latching surface 76 exists at the end of the cradle 48 located opposite the cradle 48 connection with the upper link 44. When the circuit breaker assembly 10 is in the “ON” mode the latching system 68 is set. Setting the latching system 68 includes positioning the cradle latch surface 76 under a first primary latching surface 78 so that the first primary latching surface 78 prevents the cradle 48 from rotating counterclockwise about its pivot point. A second primary latching surface 80 is positioned against a first secondary latching surface 82 so that the secondary latch 74 is in the path of the primary latch 72 preventing the primary latch 72 from rotating clockwise about its pivot point. Referring to FIGS. 2-4, FIG. 2 showing the trip bar 66, FIG. 3 showing the secondary latch 74 and FIG. 4 showing the trip bar 66 assembled in the secondary latch 74. The trip bar 66 comprises a projection 84, a leg 86 and a crosspiece 87 wherein the trip bar crosspiece 87 fits in a slot 89 on the secondary latch 74. A secondary latch pivot pin 88 allows the trip bar projection 84 and the trip bar leg 86 to rotate clockwise upon contact with the bimetal 28 or the armature 62. The secondary latch further comprises a leg 91 which snappingly engages a lip 93 on the trip bar 66 so that when activated, the two rotate together.
In operation, when the magnetic trip unit 60 is subjected to tripping conditions. A magnetic attraction is immediately generated between the armature 62 and the magnet 64 drawing the armature 62 in the direction of the magnet 64 thereby striking the projection 84 of the trip bar 66. When dealing with lower level overload conditions, the bimetal 28 flexes and strikes the leg 86 of the trip bar 66. Once the projection 84 or leg 86 of the trip bar 66 is contacted the trip bar 66 rotates clockwise. When this occurs the secondary latch 74 is also rotated clockwise so that the secondary latching surface 82 is moved from the path of the primary latch 72. Acting under tension from the mechanical spring 56 biasing the cradle 48 to rotate in a counterclockwise direction about its pivot point, the biasing force pulls at the cradle 48 so that the cradle latching surface 76 pushes up on the first primary latching surface 78. When the force exerted by the cradle 48 acting on the primary latch 72 overcomes the friction force between the two latching surfaces, it drives the primary latch 72 in a clockwise direction thereby freeing the cradle latching surface 76. Once the cradle latching surface 76 is freed, the cradle 48 rotates counterclockwise thereby collapsing the upper link 44 and the lower link 38 so that the moveable operating arm 24 can move to the open position. This separates the moveable contact 20 and the fixed contact 18 so that the current flow is terminated.
In order to improve the circuit breaker assembly mechanical trip time and eliminate a potential latch and cradle stall condition an improved latching system 92 in accordance with an exemplary embodiment of the present invention will be described in detail. Referring to FIGS. 5 and 6, FIG. 5 showing the exemplary embodiment of the present invention and FIG. 6 showing a second embodiment of the present invention, when like components are used reference numbers remain the same. Conventional trip systems as described above depend on the cradle forces alone to apply the appropriate forces required to rotate the primary latch 72 thereby releasing the cradle latching surface 76 from contact with the first primary latching surface 78. In these conventional systems, the mechanical trip time is slow and results in excess energy let-through. The improved latching system 92 depicted in FIGS. 5 and 6 limits energy let-through to acceptable levels by decreasing the mechanical trip time.
As shown in FIG. 7, the improved latching system 92 comprises a quick release primary latch 94, an interactive secondary latch 96 and the trip bar 66. Although the interactive secondary latch 96 and the trip bar 66 are described as two separate elements, the secondary latch 96 and the trip bar 66, could have their features combined into one interactive secondary latch/trip bar element 140. FIG. 8 details the quick release primary latch 94 and FIG. 9 shows the interactive secondary latch 96. The quick release primary latch 94 comprising a top cross bar 100 having a primary latch extension 102 extending generally perpendicular to the top cross bar 100 at approximately the midpoint of the top cross bar 100. The primary latch extension 102 being of sufficient length so that a bottom surface 104 of the extension 102 becomes a first primary latching surface 106 capable of interfacing with the cradle latch surface 76 to prevent the cradle 48 from counterclockwise rotation.
Referring to FIG. 8, extending at an angle from the top cross bar 100 in the same direction as the primary latch extension 102 on either side of the primary latch extension 102 are two primary legs 108. Extending generally perpendicular to the two primary legs 108 away from the primary latch extension 102 are two primary arms 110. The two primary arms 110 each having a generally oblong opening 112 through which a primary latch pivot pin 114 passes. At a distal end 116 of at least one of the primary arms 110, a cam element 124 extends. The formation of the cam element 124 as shown in FIG. 8 is illustrative and is not meant to be limiting.
The trip bar 66, as shown in FIG. 7, comprises the trip bar projection 84 and the trip bar leg 86. When the trip bar 66 is assembled to the interactive secondary latch 96, the trip bar 66 can freely rotate. Shown in FIG. 9, the interactive secondary latch 96 further comprises a step 130 and a leg 132. Wherein the leg 132 securely snaps into the lip 93 on the trip bar 66 such that when the trip bar 66 is activated by movement of the armature 62 or the bimetal 28, the interactive secondary latch 96 pivots clockwise with the trip bar 66. The step 130 is designed to make physical contact with the cam element 124 upon the release of the interactive secondary latch 96.
As shown in FIG. 5, the improved latching system 92 is set in the manner previously described, a second primary latching surface 134 is positioned against a first secondary latching surface 136 so that the quick release primary latch 94 is prevented from rotating clockwise about its pivot point. When the trip bar 66 is activated, it drives the interactive secondary latch 96 clockwise so that the second primary latching surface 134 and the first secondary latching surface 136 are moved out of contact with each other thereby releasing the quick release primary latch 94. At this point in a conventional system, the activated latching system 68 would depend on the cradle forces to drive the primary latch 72 clockwise so that the first primary latching surface 78 moves thereby releasing the cradle latching surface 76.
In the improved latching system 92, instantaneously upon the interactive secondary latch 96 clearing the quick release primary latch 94, the step 130 makes physical contact with the cam element 124. This results in the immediate rotation of the quick release primary latch 94 thereby moving the first primary latching surface 106 out of contact with the cradle latching surface 76. Once the cradle latching surface 76 is freed, the cradle 48 rotates counterclockwise thereby collapsing the upper link 44 and the lower link 38 so that the moveable operating arm 24 can move to the open position. This separates the moveable contact 20 and the fixed contact 18 so that the current flow is terminated.
The cam element 124, located on the quick release primary latch 94, and the step 130, located on the interactive secondary latch 96, are designed so that the moment the first secondary latching surface 136 clears the second primary latching surface 134, the step 130 makes physical contact with the, cam element 124.
As shown in FIG. 6 a second embodiment of the present invention relies on a linkage mechanism 138 positioned between and physically connecting the trip bar 66 and the quick release primary latch 94. The linkage mechanism 138 is utilized to drive the quick release primary latch 94 clockwise about its pivot point as the trip bar 66 is activated. This insures positive tripping and the elimination of any possibility of a stalled situation.
It will be understood that a person skilled in the art may make modifications to the preferred embodiment shown herein within the scope and intent of the claims. While the present invention has been described as carried out in a specific embodiment thereof, it is not intended to be limited thereby but is intended to cover the invention broadly within the scope and spirit of the claims.
Claims (7)
1. A latching system for use in a molded case circuit breaker assembly comprising;
a quick release primary latch having a first primary latching surface and a second primary latching surface;
a cradle having a cradle latching surface which engages the first primary latching surface preventing the rotation of the cradle; and
an interactive secondary latch/trip bar having a first secondary latching surface which engages the second primary latching surface preventing the rotation of the quick release primary latch and wherein activation of the interactive secondary latch/trip bar causes it to rotate so that the first secondary latching surface moves out of contact with the second primary latching surface prior to the interactive secondary latch/trip bar making contact with the quick release primary latch rotating the quick release primary latch thereby moving the first primary latching surface out of contact with the cradle latching surface releasing the cradle.
2. The latching system according to claim 1, wherein the interactive secondary latch/trip bar comprises;
an interactive secondary latch having a first secondary latching surface which engages the second primary latching surface preventing the rotation of the quick release primary latch; and
a trip bar that is assembled to the interactive secondary latch, wherein activation of the trip bar rotates the secondary latch so that the first secondary latching surface moves out of contact with the second primary latching surface prior to the interactive secondary latch making contact with the quick release primary latch rotating the quick release primary latch thereby moving the first primary latching surface out of contact with the cradle latching surface releasing the cradle.
3. The latching system according to claim 2, wherein the interactive secondary latch further comprises a leg that securely snaps into a lip formed on the trip bar so that when the trip bar is assembled to the interactive secondary latch the two rotate together.
4. The latching system according to claim 3, wherein the interactive secondary latch further comprises a step that extends in the same direction as the first secondary latching surface.
5. The latching system according to claim 4, wherein the quick release primary latch further comprises at least one cam element that extends in a direction opposite the first primary latching surface.
6. The latching system according to claim 5, wherein the interactive secondary latch rotates in a clockwise direction so that the first secondary latching surface moves out of contact with the second primary latching surface, the continued rotation of the interactive secondary latch drives the step to make physical contact with the cam element forcing the quick release primary latch to rotate clockwise releasing the first primary latching surface from the cradle latching surface.
7. A latching system for use in a molded case circuit breaker assembly comprising;
a quick release primary latch having a first primary latching surface and a second primary latching surface;
an interactive secondary latch having a first secondary latching surface which engages the second primary latching surface preventing the rotation of the quick release primary latch;
a cradle having a cradle latching surface which engages the first primary latching surface preventing the rotation of the cradle;
a trip bar assembled to the interactive secondary latch; and
a linkage mechanism attaching the trip bar and the quick release primary latch, wherein activation of the trip bar rotates the secondary latch so that the first secondary latching surface moves out of contact with the second primary latching surface as the linkage mechanism drives the quick release primary latch thereby moving the first primary latching surface out of contact with the cradle latching surface releasing the cradle.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/525,847 US6218919B1 (en) | 2000-03-15 | 2000-03-15 | Circuit breaker latch mechanism with decreased trip time |
MXPA01011432A MXPA01011432A (en) | 2000-03-15 | 2001-03-13 | Circuit breaker latch mechanism with decreased trip time. |
CNA018005233A CN1528005A (en) | 2000-03-15 | 2001-03-13 | Circuit breaker latch mechanism with decreased trip time |
PCT/US2001/008185 WO2001069633A2 (en) | 2000-03-15 | 2001-03-13 | Circuit breaker latch mechanism with decreased trip time |
EP01918674A EP1194940A2 (en) | 2000-03-15 | 2001-03-13 | Circuit breaker latch mechanism with decreased trip time |
PL01351090A PL351090A1 (en) | 2000-03-15 | 2001-03-13 | Circuit breaker latch mechanism with decreased trip time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/525,847 US6218919B1 (en) | 2000-03-15 | 2000-03-15 | Circuit breaker latch mechanism with decreased trip time |
Publications (1)
Publication Number | Publication Date |
---|---|
US6218919B1 true US6218919B1 (en) | 2001-04-17 |
Family
ID=24094838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/525,847 Expired - Fee Related US6218919B1 (en) | 2000-03-15 | 2000-03-15 | Circuit breaker latch mechanism with decreased trip time |
Country Status (6)
Country | Link |
---|---|
US (1) | US6218919B1 (en) |
EP (1) | EP1194940A2 (en) |
CN (1) | CN1528005A (en) |
MX (1) | MXPA01011432A (en) |
PL (1) | PL351090A1 (en) |
WO (1) | WO2001069633A2 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6750743B1 (en) | 2003-05-13 | 2004-06-15 | General Electric Company | Integrated thermal and magnetic trip unit |
US6778048B1 (en) | 2003-05-13 | 2004-08-17 | General Electric Company | Circuit breaker interface mechanism for bell alarm switch |
US20040227601A1 (en) * | 2003-05-13 | 2004-11-18 | General Electric Company | Circuit breaker interface mechanism for auxiliary switch accessory |
US20040227598A1 (en) * | 2003-05-13 | 2004-11-18 | Ronald Ciarcia | Phase-to-phase isolation of cassette type circuit breakers |
US20040227602A1 (en) * | 2003-05-13 | 2004-11-18 | Ronald Ciarcia | Circuit breaker magnetic trip assembly |
US20050051414A1 (en) * | 2003-09-10 | 2005-03-10 | General Electric Company | Circuit breaker handle block |
US20050057333A1 (en) * | 2003-09-15 | 2005-03-17 | General Electric Company | Circuit breaker lug cover and gasket |
US20050056452A1 (en) * | 2003-07-11 | 2005-03-17 | Yazaki Corporation | Shield-processing structure of shielded cable |
CN101145474B (en) * | 2006-04-07 | 2010-12-15 | 汉斯科技有限公司 | Residual electric current breaker |
WO2012120327A1 (en) | 2011-03-07 | 2012-09-13 | Larsen & Toubro Limited | An enhanced latch meachanism for use in circuit breakers |
US8350168B2 (en) | 2010-06-30 | 2013-01-08 | Schneider Electric USA, Inc. | Quad break modular circuit breaker interrupter |
US20130228428A1 (en) * | 2012-03-02 | 2013-09-05 | Siemens Aktiengesellshaft | Circuit breaker latching mechanism |
US20150035628A1 (en) * | 2012-03-12 | 2015-02-05 | Siemens Aktiengesellschaft | Circuit breaker trip blocking apparatus, systems, and methods of operation |
US9349560B2 (en) | 2014-02-20 | 2016-05-24 | General Electric Company | Limiter type air circuit breaker with blow open arrangement |
US20220122791A1 (en) * | 2019-07-03 | 2022-04-21 | Ellenberger & Poensgen Gmbh | Circuit breaker |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101527232B (en) * | 2007-12-27 | 2012-07-18 | 拿丁有限责任公司 | Contact actuating mechanism for switching device |
Citations (218)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2340682A (en) | 1942-05-06 | 1944-02-01 | Gen Electric | Electric contact element |
US2719203A (en) | 1952-05-02 | 1955-09-27 | Westinghouse Electric Corp | Circuit breakers |
US2937254A (en) | 1957-02-05 | 1960-05-17 | Gen Electric | Panelboard unit |
US3158717A (en) | 1962-07-18 | 1964-11-24 | Gen Electric | Electric circuit breaker including stop means for limiting movement of a toggle linkage |
US3162739A (en) | 1962-06-25 | 1964-12-22 | Gen Electric | Electric circuit breaker with improved trip means |
US3197582A (en) | 1962-07-30 | 1965-07-27 | Fed Pacific Electric Co | Enclosed circuit interrupter |
DE1227978B (en) | 1963-10-04 | 1966-11-03 | Licentia Gmbh | Electrical switchgear, in particular contactor |
US3307002A (en) | 1965-02-04 | 1967-02-28 | Texas Instruments Inc | Multipole circuit breaker |
US3517356A (en) | 1967-07-24 | 1970-06-23 | Terasaki Denki Sangyo Kk | Circuit interrupter |
US3631369A (en) | 1970-04-27 | 1971-12-28 | Ite Imperial Corp | Blowoff means for circuit breaker latch |
US3742401A (en) * | 1972-07-27 | 1973-06-26 | Ite Imperial Corp | Multi pole latch system having means to defeat single pole latching |
US3803455A (en) | 1973-01-02 | 1974-04-09 | Gen Electric | Electric circuit breaker static trip unit with thermal override |
BE819008A (en) | 1973-08-20 | 1974-12-16 | DIFFERENTIAL TRIGGER | |
US3883781A (en) | 1973-09-06 | 1975-05-13 | Westinghouse Electric Corp | Remote controlled circuit interrupter |
US4129762A (en) | 1976-07-30 | 1978-12-12 | Societe Anonyme Dite: Unelec | Circuit-breaker operating mechanism |
US4144513A (en) | 1977-08-18 | 1979-03-13 | Gould Inc. | Anti-rebound latch for current limiting switches |
US4158119A (en) | 1977-07-20 | 1979-06-12 | Gould Inc. | Means for breaking welds formed between circuit breaker contacts |
US4165453A (en) | 1976-08-09 | 1979-08-21 | Societe Anonyme Dite: Unelec | Switch with device to interlock the switch control if the contacts stick |
US4166988A (en) | 1978-04-19 | 1979-09-04 | General Electric Company | Compact three-pole circuit breaker |
FR2410353B1 (en) | 1977-11-28 | 1980-08-22 | Merlin Gerin | |
US4220934A (en) | 1978-10-16 | 1980-09-02 | Westinghouse Electric Corp. | Current limiting circuit breaker with integral magnetic drive device housing and contact arm stop |
US4255732A (en) | 1978-10-16 | 1981-03-10 | Westinghouse Electric Corp. | Current limiting circuit breaker |
US4259651A (en) | 1978-10-16 | 1981-03-31 | Westinghouse Electric Corp. | Current limiting circuit interrupter with improved operating mechanism |
US4263492A (en) | 1979-09-21 | 1981-04-21 | Westinghouse Electric Corp. | Circuit breaker with anti-bounce mechanism |
US4276527A (en) | 1978-06-23 | 1981-06-30 | Merlin Gerin | Multipole electrical circuit breaker with improved interchangeable trip units |
US4297663A (en) | 1979-10-26 | 1981-10-27 | General Electric Company | Circuit breaker accessories packaged in a standardized molded case |
US4301342A (en) | 1980-06-23 | 1981-11-17 | General Electric Company | Circuit breaker condition indicator apparatus |
US4360852A (en) | 1981-04-01 | 1982-11-23 | Allis-Chalmers Corporation | Overcurrent and overtemperature protective circuit for power transistor system |
US4368444A (en) | 1980-08-29 | 1983-01-11 | Siemens Aktiengesellschaft | Low-voltage protective circuit breaker with locking lever |
US4375021A (en) | 1980-01-31 | 1983-02-22 | General Electric Company | Rapid electric-arc extinguishing assembly in circuit-breaking devices such as electric circuit breakers |
US4375022A (en) | 1979-03-23 | 1983-02-22 | Alsthom-Unelec | Circuit breaker fitted with a device for indicating a short circuit |
US4376270A (en) | 1980-09-15 | 1983-03-08 | Siemens Aktiengesellschaft | Circuit breaker |
US4383146A (en) | 1980-03-12 | 1983-05-10 | Merlin Gerin | Four-pole low voltage circuit breaker |
US4392036A (en) | 1980-08-29 | 1983-07-05 | Siemens Aktiengesellschaft | Low-voltage protective circuit breaker with a forked locking lever |
US4393283A (en) | 1980-04-10 | 1983-07-12 | Hosiden Electronics Co., Ltd. | Jack with plug actuated slide switch |
US4401872A (en) | 1981-05-18 | 1983-08-30 | Merlin Gerin | Operating mechanism of a low voltage electric circuit breaker |
US4409573A (en) | 1981-04-23 | 1983-10-11 | Siemens-Allis, Inc. | Electromagnetically actuated anti-rebound latch |
FR2512582B1 (en) | 1981-09-10 | 1983-10-28 | Merlin Gerin | |
EP0061092B1 (en) | 1981-03-20 | 1983-12-21 | BASF Aktiengesellschaft | Electrophotographic recording material |
US4435690A (en) | 1982-04-26 | 1984-03-06 | Rte Corporation | Primary circuit breaker |
US4467297A (en) | 1981-05-07 | 1984-08-21 | Merlin Gerin | Multi-pole circuit breaker with interchangeable magneto-thermal tripping unit |
US4468645A (en) | 1981-10-05 | 1984-08-28 | Merlin Gerin | Multipole circuit breaker with removable trip unit |
EP0117094A1 (en) | 1983-02-18 | 1984-08-29 | Heinemann Electric Company | A circuit breaker comprising parallel connected sections |
US4470027A (en) | 1982-07-16 | 1984-09-04 | Eaton Corporation | Molded case circuit breaker with improved high fault current interruption capability |
US4479143A (en) | 1980-12-16 | 1984-10-23 | Sharp Kabushiki Kaisha | Color imaging array and color imaging device |
US4488133A (en) | 1983-03-28 | 1984-12-11 | Siemens-Allis, Inc. | Contact assembly including spring loaded cam follower overcenter means |
US4541032A (en) | 1980-10-21 | 1985-09-10 | B/K Patent Development Company, Inc. | Modular electrical shunts for integrated circuit applications |
US4546224A (en) | 1982-10-07 | 1985-10-08 | Sace S.P.A. Costruzioni Elettromeccaniche | Electric switch in which the control lever travel is arrested if the contacts become welded together |
US4550300A (en) | 1984-05-10 | 1985-10-29 | General Electric Company | Latch release mechanism for molded case electric circuit breakers |
US4550360A (en) | 1984-05-21 | 1985-10-29 | General Electric Company | Circuit breaker static trip unit having automatic circuit trimming |
US4562419A (en) | 1983-12-22 | 1985-12-31 | Siemens Aktiengesellschaft | Electrodynamically opening contact system |
FR2553943B1 (en) | 1983-10-24 | 1986-04-11 | Merlin Gerin | RESIDUAL DIFFERENTIAL DEVICE PROVIDED WITH A DEVICE FOR MONITORING THE ELECTRONIC POWER SOURCE |
US4589052A (en) | 1984-07-17 | 1986-05-13 | General Electric Company | Digital I2 T pickup, time bands and timing control circuits for static trip circuit breakers |
US4595812A (en) | 1983-09-21 | 1986-06-17 | Mitsubishi Denki Kabushiki Kaisha | Circuit interrupter with detachable optional accessories |
US4611187A (en) | 1984-02-15 | 1986-09-09 | General Electric Company | Circuit breaker contact arm latch mechanism for eliminating contact bounce |
US4612430A (en) | 1984-12-21 | 1986-09-16 | Square D Company | Anti-rebound latch |
US4616198A (en) | 1984-08-14 | 1986-10-07 | General Electric Company | Contact arrangement for a current limiting circuit breaker |
US4622530A (en) * | 1983-06-02 | 1986-11-11 | General Electric Company | Circuit breaker assembly for high speed manufacture |
US4622444A (en) | 1984-07-20 | 1986-11-11 | Fuji Electric Co., Ltd. | Circuit breaker housing and attachment box |
US4631625A (en) | 1984-09-27 | 1986-12-23 | Siemens Energy & Automation, Inc. | Microprocessor controlled circuit breaker trip unit |
US4642431A (en) | 1985-07-18 | 1987-02-10 | Westinghouse Electric Corp. | Molded case circuit breaker with a movable electrical contact positioned by a camming spring loaded clip |
US4644438A (en) | 1983-06-03 | 1987-02-17 | Merlin Gerin | Current-limiting circuit breaker having a selective solid state trip unit |
US4649247A (en) | 1984-08-23 | 1987-03-10 | Siemens Aktiengesellschaft | Contact assembly for low-voltage circuit breakers with a two-arm contact lever |
US4658322A (en) | 1982-04-29 | 1987-04-14 | The United States Of America As Represented By The Secretary Of The Navy | Arcing fault detector |
US4672501A (en) | 1984-06-29 | 1987-06-09 | General Electric Company | Circuit breaker and protective relay unit |
US4675481A (en) | 1986-10-09 | 1987-06-23 | General Electric Company | Compact electric safety switch |
US4682264A (en) | 1985-02-25 | 1987-07-21 | Merlin Gerin | Circuit breaker with digital solid-state trip unit fitted with a calibration circuit |
DE3047360C2 (en) | 1980-12-16 | 1987-08-20 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart | Switching strip |
US4689712A (en) | 1985-02-25 | 1987-08-25 | Merlin Gerin S.A. | Circuit breaker with solid-state trip unit with a digital processing system shunted by an analog processing system |
EP0140761B1 (en) | 1983-10-21 | 1987-09-09 | Merlin Gerin | Operating mechanism for a low-voltage multi-pole circuit breaker |
US4694373A (en) | 1985-02-25 | 1987-09-15 | Merlin Gerin | Circuit breaker with digital solid-state trip unit with optional functions |
US4710845A (en) | 1985-02-25 | 1987-12-01 | Merlin Gerin S.A. | Circuit breaker with solid-state trip unit with sampling and latching at the last signal peak |
US4717985A (en) | 1985-02-25 | 1988-01-05 | Merlin Gerin S.A. | Circuit breaker with digitized solid-state trip unit with inverse time tripping function |
FR2592998B1 (en) | 1986-01-10 | 1988-03-18 | Merlin Gerin | TEST CIRCUIT FOR AN ELECTRONIC TRIGGER OF A DIFFERENTIAL CIRCUIT BREAKER. |
US4733211A (en) | 1987-01-13 | 1988-03-22 | General Electric Company | Molded case circuit breaker crossbar assembly |
US4733321A (en) | 1986-04-30 | 1988-03-22 | Merlin Gerin | Solid-state instantaneous trip device for a current limiting circuit breaker |
US4736174A (en) * | 1987-04-23 | 1988-04-05 | General Electric Company | Molded case circuit breaker operating mechanism |
US4764650A (en) | 1985-10-31 | 1988-08-16 | Merlin Gerin | Molded case circuit breaker with removable arc chutes and disengageable transmission system between the operating mechanism and the poles |
US4768007A (en) | 1986-02-28 | 1988-08-30 | Merlin Gerin | Current breaking device with solid-state switch and built-in protective circuit breaker |
US4780786A (en) | 1986-08-08 | 1988-10-25 | Merlin Gerin | Solid-state trip unit of an electrical circuit breaker with contact wear indicator |
US4789848A (en) * | 1987-09-03 | 1988-12-06 | General Electric Company | Molded case circuit breaker latch and operating mechanism assembly |
US4831221A (en) | 1987-12-16 | 1989-05-16 | General Electric Company | Molded case circuit breaker auxiliary switch unit |
US4870531A (en) | 1988-08-15 | 1989-09-26 | General Electric Company | Circuit breaker with removable display and keypad |
US4884047A (en) | 1987-12-10 | 1989-11-28 | Merlin Gerin | High rating multipole circuit breaker formed by two adjoined molded cases |
US4884164A (en) | 1989-02-01 | 1989-11-28 | General Electric Company | Molded case electronic circuit interrupter |
US4883931A (en) | 1987-06-18 | 1989-11-28 | Merlin Gerin | High pressure arc extinguishing chamber |
US4900882A (en) | 1987-07-02 | 1990-02-13 | Merlin Gerin | Rotating arc and expansion circuit breaker |
US4910485A (en) | 1987-10-26 | 1990-03-20 | Merlin Gerin | Multiple circuit breaker with double break rotary contact |
US4914541A (en) | 1988-01-28 | 1990-04-03 | Merlin Gerin | Solid-state trip device comprising an instantaneous tripping circuit independent from the supply voltage |
US4916420A (en) | 1987-06-09 | 1990-04-10 | Merlin Gerin | Operating mechanism of a miniature electrical circuit breaker |
US4916421A (en) | 1987-10-01 | 1990-04-10 | General Electric Company | Contact arrangement for a current limiting circuit breaker |
US4926282A (en) | 1987-06-12 | 1990-05-15 | Bicc Public Limited Company | Electric circuit breaking apparatus |
DE3802184C2 (en) | 1988-01-26 | 1990-05-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | |
US4935590A (en) | 1988-03-01 | 1990-06-19 | Merlin Gerin | Gas-blast circuit breaker |
US4937706A (en) | 1987-12-10 | 1990-06-26 | Merlin Gerin | Ground fault current protective device |
DE3843277A1 (en) | 1988-12-22 | 1990-06-28 | Bosch Gmbh Robert | Power output stage for electromagnetic loads |
US4939492A (en) | 1988-01-28 | 1990-07-03 | Merlin Gerin | Electromagnetic trip device with tripping threshold adjustment |
US4943691A (en) | 1988-06-10 | 1990-07-24 | Merlin Gerin | Low-voltage limiting circuit breaker with leaktight extinguishing chamber |
US4943888A (en) | 1989-07-10 | 1990-07-24 | General Electric Company | Electronic circuit breaker using digital circuitry having instantaneous trip capability |
US4951019A (en) | 1989-03-30 | 1990-08-21 | Westinghouse Electric Corp. | Electrical circuit breaker operating handle block |
US4950855A (en) | 1987-11-04 | 1990-08-21 | Merlin Gerin | Self-expansion electrical circuit breaker with variable extinguishing chamber volume |
US4952897A (en) | 1987-09-25 | 1990-08-28 | Merlin Gerin | Limiting circuit breaker |
US4958135A (en) | 1987-12-10 | 1990-09-18 | Merlin Gerin | High rating molded case multipole circuit breaker |
US4965543A (en) | 1988-11-16 | 1990-10-23 | Merin Gerin | Magnetic trip device with wide tripping threshold setting range |
EP0394922A1 (en) | 1989-04-28 | 1990-10-31 | Asea Brown Boveri Ab | Contact arrangement for electric switching devices |
GB2233155A (en) | 1989-04-27 | 1991-01-02 | Delta Circuits Protection | Electric circuit breaker |
US4983788A (en) | 1988-06-23 | 1991-01-08 | Cge Compagnia Generale Electtromeccanica S.P.A. | Electric switch mechanism for relays and contactors |
US5001313A (en) | 1989-02-27 | 1991-03-19 | Merlin Gerin | Rotating arc circuit breaker with centrifugal extinguishing gas effect |
US5004878A (en) | 1989-03-30 | 1991-04-02 | General Electric Company | Molded case circuit breaker movable contact arm arrangement |
EP0224396B1 (en) | 1985-10-31 | 1991-06-05 | Merlin Gerin | Control mechanism for a low-tension electric circuit breaker |
US5029301A (en) | 1989-06-26 | 1991-07-02 | Merlin Gerin | Limiting circuit breaker equipped with an electromagnetic effect contact fall delay device |
US5057655A (en) | 1989-03-17 | 1991-10-15 | Merlin Gerin | Electrical circuit breaker with self-extinguishing expansion and insulating gas |
EP0283358B1 (en) | 1987-03-09 | 1991-11-27 | Merlin Gerin | Static trip unit comprising a circuit for detecting the residual current |
US5077627A (en) | 1989-05-03 | 1991-12-31 | Merlin Gerin | Solid-state trip device for a protective circuit breaker of a three-phase mains system, enabling the type of fault to be detected |
US5083081A (en) | 1990-03-01 | 1992-01-21 | Merlin Gerin | Current sensor for an electronic trip device |
EP0264313B1 (en) | 1986-09-23 | 1992-01-29 | Merlin Gerin | Electric differential-protection apparatus with a test circuit |
US5095183A (en) | 1989-01-17 | 1992-03-10 | Merlin Gerin | Gas-blast electrical circuit breaker |
US5103198A (en) | 1990-05-04 | 1992-04-07 | Merlin Gerin | Instantaneous trip device of a circuit breaker |
EP0313422B1 (en) | 1987-10-09 | 1992-04-22 | Merlin Gerin | Static tripping device for a circuit breaker in a cast case |
US5115371A (en) | 1989-09-13 | 1992-05-19 | Merlin Gerin | Circuit breaker comprising an electronic trip device |
EP0239460B1 (en) | 1986-03-26 | 1992-06-03 | Merlin Gerin | Electric switch having an ameliorated dielectric strength |
US5120921A (en) | 1990-09-27 | 1992-06-09 | Siemens Energy & Automation, Inc. | Circuit breaker including improved handle indication of contact position |
US5132865A (en) | 1989-09-13 | 1992-07-21 | Merlin Gerin | Ultra high-speed circuit breaker with galvanic isolation |
US5138121A (en) | 1989-08-16 | 1992-08-11 | Siemens Aktiengesellschaft | Auxiliary contact mounting block |
US5140115A (en) | 1991-02-25 | 1992-08-18 | General Electric Company | Circuit breaker contacts condition indicator |
US5153802A (en) | 1990-06-12 | 1992-10-06 | Merlin Gerin | Static switch |
US5155315A (en) | 1989-12-11 | 1992-10-13 | Merlin Gerin | Hybrid medium voltage circuit breaker |
EP0291374B1 (en) | 1987-05-11 | 1992-10-21 | Merlin Gerin | Trip bar for a multipole breaker block associated with an auxiliary trip block |
EP0295155B1 (en) | 1987-05-11 | 1992-10-28 | Merlin Gerin | Modular breaker with an auxiliary tripping block associated with a multipole breaker block |
US5166483A (en) | 1990-06-14 | 1992-11-24 | Merlin Gerin | Electrical circuit breaker with rotating arc and self-extinguishing expansion |
US5172087A (en) | 1992-01-31 | 1992-12-15 | General Electric Company | Handle connector for multi-pole circuit breaker |
EP0283189B1 (en) | 1987-03-12 | 1992-12-16 | Merlin Gerin Limited | Electrical ring main unit |
EP0313106B1 (en) | 1987-03-12 | 1992-12-16 | Merlin Gerin Limited | Electrical switchgear |
US5178504A (en) | 1990-05-29 | 1993-01-12 | Cge Compagnia Generale Elettromeccanica Spa | Plugged fastening device with snap-action locking for control and/or signalling units |
EP0264314B1 (en) | 1986-09-23 | 1993-01-20 | Merlin Gerin | Multipole differential circuit breaker with a modular assembly |
US5184717A (en) | 1991-05-29 | 1993-02-09 | Westinghouse Electric Corp. | Circuit breaker with welded contacts |
US5187339A (en) | 1990-06-26 | 1993-02-16 | Merlin Gerin | Gas insulated high-voltage circuit breaker with pneumatic operating mechanism |
US5198956A (en) | 1992-06-19 | 1993-03-30 | Square D Company | Overtemperature sensing and signaling circuit |
US5200724A (en) | 1989-03-30 | 1993-04-06 | Westinghouse Electric Corp. | Electrical circuit breaker operating handle block |
US5210385A (en) | 1989-07-26 | 1993-05-11 | Merlin Gerin | Low voltage circuit breaker with multiple contacts for high currents |
EP0331586B1 (en) | 1988-03-04 | 1993-07-07 | Merlin Gerin | Actuating mechanism of an auxiliary tripping block for a modular circuit breaker |
EP0235479B1 (en) | 1986-01-10 | 1993-08-04 | Merlin Gerin | Static tripping unit with test circuit for electrical circuit interruptor |
EP0342133B1 (en) | 1988-05-13 | 1993-08-11 | Merlin Gerin | Operating mechanism for a miniature circuit breaker having a contact-welding indicator |
US5239150A (en) | 1991-06-03 | 1993-08-24 | Merlin Gerin | Medium voltage circuit breaker with operating mechanism providing reduced operating energy |
US5260533A (en) | 1991-10-18 | 1993-11-09 | Westinghouse Electric Corp. | Molded case current limiting circuit breaker |
US5262744A (en) | 1991-01-22 | 1993-11-16 | General Electric Company | Molded case circuit breaker multi-pole crossbar assembly |
FR2682531B1 (en) | 1991-10-15 | 1993-11-26 | Merlin Gerin | MULTIPOLAR CIRCUIT BREAKER WITH SINGLE POLE BLOCKS. |
EP0407310B1 (en) | 1989-07-03 | 1993-12-01 | Merlin Gerin | Static trip unit with a desensibilisation system for earth protection |
EP0367690B1 (en) | 1988-11-04 | 1993-12-29 | Merlin Gerin | Tripping circuit with test circuit and selfprotected remote control for opening |
US5280144A (en) | 1991-10-17 | 1994-01-18 | Merlin Gerin | Hybrid circuit breaker with axial blowout coil |
EP0371887B1 (en) | 1988-11-28 | 1994-01-26 | Merlin Gerin | Modular breaker with an auxiliary tripping block with independent or automatic resetting |
US5296664A (en) | 1992-11-16 | 1994-03-22 | Westinghouse Electric Corp. | Circuit breaker with positive off protection |
US5296660A (en) | 1992-02-07 | 1994-03-22 | Merlin Gerin | Auxiliary shunt multiple contact breaking device |
US5298874A (en) | 1991-10-15 | 1994-03-29 | Merlin Gerin | Range of molded case low voltage circuit breakers |
US5300907A (en) | 1992-02-07 | 1994-04-05 | Merlin Gerin | Operating mechanism of a molded case circuit breaker |
US5310971A (en) | 1992-03-13 | 1994-05-10 | Merlin Gerin | Molded case circuit breaker with contact bridge slowed down at the end of repulsion travel |
US5313180A (en) | 1992-03-13 | 1994-05-17 | Merlin Gerin | Molded case circuit breaker contact |
US5317471A (en) | 1991-11-13 | 1994-05-31 | Gerin Merlin | Process and device for setting a thermal trip device with bimetal strip |
EP0337900B1 (en) | 1988-04-14 | 1994-06-01 | Merlin Gerin | High sensitivity electromagnetic tripper |
FR2699324A1 (en) | 1992-12-11 | 1994-06-17 | Gen Electric | Auxiliary compact switch for circuit breaker - has casing placed inside circuit breaker box and housing lever actuated by button of microswitch and driven too its original position by spring |
US5331500A (en) | 1990-12-26 | 1994-07-19 | Merlin Gerin | Circuit breaker comprising a card interfacing with a trip device |
US5334808A (en) | 1992-04-23 | 1994-08-02 | Merlin Gerin | Draw-out molded case circuit breaker |
US5341191A (en) | 1991-10-18 | 1994-08-23 | Eaton Corporation | Molded case current limiting circuit breaker |
US5347096A (en) | 1991-10-17 | 1994-09-13 | Merlin Gerin | Electrical circuit breaker with two vacuum cartridges in series |
US5347097A (en) | 1990-08-01 | 1994-09-13 | Merlin Gerin | Electrical circuit breaker with rotating arc and self-extinguishing expansion |
US5350892A (en) | 1991-11-20 | 1994-09-27 | Gec Alsthom Sa | Medium tension circuit-breaker for indoor or outdoor use |
US5357068A (en) | 1991-11-20 | 1994-10-18 | Gec Alsthom Sa | Sulfur hexafluoride isolating circuit-breaker and use thereof in prefabricated stations, substations, and bays |
US5357066A (en) | 1991-10-29 | 1994-10-18 | Merlin Gerin | Operating mechanism for a four-pole circuit breaker |
US5357394A (en) | 1991-10-10 | 1994-10-18 | Merlin Gerin | Circuit breaker with selective locking |
US5361052A (en) | 1993-07-02 | 1994-11-01 | General Electric Company | Industrial-rated circuit breaker having universal application |
FR2697670B1 (en) | 1992-11-04 | 1994-12-02 | Merlin Gerin | Relay constituting a mechanical actuator to trip a circuit breaker or a differential switch. |
EP0452230B1 (en) | 1990-04-09 | 1994-12-07 | Merlin Gerin | Driving mechanism for circuit breaker |
US5373130A (en) | 1992-06-30 | 1994-12-13 | Merlin Gerin | Self-extinguishing expansion switch or circuit breaker |
EP0394144B1 (en) | 1989-04-20 | 1994-12-28 | Merlin Gerin | Auxiliary switch with manual test for modular circuit breaker |
US5379013A (en) | 1992-09-28 | 1995-01-03 | Merlin Gerin | Molded case circuit breaker with interchangeable trip units |
EP0375568B1 (en) | 1988-12-14 | 1995-01-11 | Merlin Gerin | Modulator assembly device for a multipole differential circuit breaker |
US5424701A (en) | 1994-02-25 | 1995-06-13 | General Electric | Operating mechanism for high ampere-rated circuit breakers |
US5438176A (en) | 1992-10-13 | 1995-08-01 | Merlin Gerin | Three-position switch actuating mechanism |
US5440088A (en) | 1992-09-29 | 1995-08-08 | Merlin Gerin | Molded case circuit breaker with auxiliary contacts |
EP0399282B1 (en) | 1989-05-25 | 1995-08-30 | BTICINO S.r.l. | An automatic magneto-thermal protection switch having a high breaking capacity |
US5450048A (en) | 1993-04-01 | 1995-09-12 | Merlin Gerin | Circuit breaker comprising a removable calibrating device |
US5449871A (en) | 1993-04-20 | 1995-09-12 | Merlin Gerin | Operating mechanism of a multipole electrical circuit breaker |
US5451729A (en) | 1993-03-17 | 1995-09-19 | Ellenberger & Poensgen Gmbh | Single or multipole circuit breaker |
US5457295A (en) | 1992-09-28 | 1995-10-10 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker |
US5467069A (en) | 1993-04-16 | 1995-11-14 | Merlin Gerin | Device for adjusting the tripping threshold of a multipole circuit breaker |
US5469121A (en) | 1993-04-07 | 1995-11-21 | Merlin Gerin | Multiple current-limiting circuit breaker with electrodynamic repulsion |
US5475558A (en) | 1991-07-09 | 1995-12-12 | Merlin Gerin | Electrical power distribution device with isolation monitoring |
US5477016A (en) | 1993-02-16 | 1995-12-19 | Merlin Gerin | Circuit breaker with remote control and disconnection function |
US5479143A (en) | 1993-04-07 | 1995-12-26 | Merlin Gerin | Multipole circuit breaker with modular assembly |
US5483212A (en) | 1992-10-14 | 1996-01-09 | Klockner-Moeller Gmbh | Overload relay to be combined with contactors |
US5485343A (en) | 1994-02-22 | 1996-01-16 | General Electric Company | Digital circuit interrupter with battery back-up facility |
FR2714771B1 (en) | 1994-01-06 | 1996-02-02 | Merlin Gerin | Differential protection device for a power transformer. |
US5493083A (en) | 1993-02-16 | 1996-02-20 | Merlin Gerin | Rotary control device of a circuit breaker |
USD367265S (en) | 1994-07-15 | 1996-02-20 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker for distribution |
EP0700140A1 (en) | 1994-09-01 | 1996-03-06 | ABB ELETTROCONDUTTURE S.p.A. | Electronic base circuit for overload relays depending from the line voltage |
US5504290A (en) | 1993-02-16 | 1996-04-02 | Merlin Gerin | Remote controlled circuit breaker with recharging cam |
US5504284A (en) | 1993-02-03 | 1996-04-02 | Merlin Gerin | Device for mechanical and electrical lockout of a remote control unit for a modular circuit breaker |
US5510761A (en) | 1993-01-11 | 1996-04-23 | Klockner Moeller Gmbh | Contact system for a current limiting unit |
US5512720A (en) | 1993-04-16 | 1996-04-30 | Merlin Gerin | Auxiliary trip device for a circuit breaker |
US5515018A (en) | 1994-09-28 | 1996-05-07 | Siemens Energy & Automation, Inc. | Pivoting circuit breaker load terminal |
US5519561A (en) | 1994-11-08 | 1996-05-21 | Eaton Corporation | Circuit breaker using bimetal of thermal-magnetic trip to sense current |
US5534835A (en) | 1995-03-30 | 1996-07-09 | Siemens Energy & Automation, Inc. | Circuit breaker with molded cam surfaces |
US5534832A (en) | 1993-03-25 | 1996-07-09 | Telemecanique | Switch |
US5534674A (en) | 1993-11-02 | 1996-07-09 | Klockner-Moeller Gmbh | Current limiting contact system for circuit breakers |
US5534840A (en) | 1993-07-02 | 1996-07-09 | Schneider Electric Sa | Control and/or indicator unit |
US5539168A (en) | 1994-03-11 | 1996-07-23 | Klockner-Moeller Gmbh | Power circuit breaker having a housing structure with accessory equipment for the power circuit breaker |
US5543595A (en) | 1994-02-02 | 1996-08-06 | Klockner-Moeller Gmbh | Circuit breaker with a blocking mechanism and a blocking mechanism for a circuit breaker |
US5552755A (en) | 1992-09-11 | 1996-09-03 | Eaton Corporation | Circuit breaker with auxiliary switch actuated by cascaded actuating members |
EP0196241B2 (en) | 1985-02-27 | 1996-09-04 | Merlin Gerin | Single pole and neutral differential circuit breaker |
US5581219A (en) | 1991-10-24 | 1996-12-03 | Fuji Electric Co., Ltd. | Circuit breaker |
US5604656A (en) | 1993-07-06 | 1997-02-18 | J. H. Fenner & Co., Limited | Electromechanical relays |
US5608367A (en) | 1995-11-30 | 1997-03-04 | Eaton Corporation | Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap |
EP0619591B1 (en) | 1993-04-08 | 1997-03-12 | Schneider Electric Sa | Magnetothermal trip unit |
DE4419240C2 (en) | 1993-06-07 | 1997-06-05 | Weber Ag | Single or multi-pole housing to accommodate NH fuses |
EP0567416B1 (en) | 1992-04-23 | 1997-07-16 | Schneider Electric Sa | Mechanic interlocking device of two moulded case circuit breakers |
EP0595730B1 (en) | 1992-10-29 | 1997-08-06 | Schneider Electric Sa | Circuit-breaker with draw-out auxiliary circuit blocks |
EP0889498A3 (en) | 1997-07-02 | 1999-06-16 | AEG Niederspannungstechnik GmbH & Co. KG | Rotary contact assembly for high ampere-rated circuit breakers |
EP0665569B1 (en) | 1994-01-26 | 2000-03-22 | Schneider Electric Industries SA | Diffential trip unit |
-
2000
- 2000-03-15 US US09/525,847 patent/US6218919B1/en not_active Expired - Fee Related
-
2001
- 2001-03-13 MX MXPA01011432A patent/MXPA01011432A/en unknown
- 2001-03-13 PL PL01351090A patent/PL351090A1/en unknown
- 2001-03-13 CN CNA018005233A patent/CN1528005A/en active Pending
- 2001-03-13 WO PCT/US2001/008185 patent/WO2001069633A2/en not_active Application Discontinuation
- 2001-03-13 EP EP01918674A patent/EP1194940A2/en not_active Withdrawn
Patent Citations (232)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2340682A (en) | 1942-05-06 | 1944-02-01 | Gen Electric | Electric contact element |
US2719203A (en) | 1952-05-02 | 1955-09-27 | Westinghouse Electric Corp | Circuit breakers |
US2937254A (en) | 1957-02-05 | 1960-05-17 | Gen Electric | Panelboard unit |
US3162739A (en) | 1962-06-25 | 1964-12-22 | Gen Electric | Electric circuit breaker with improved trip means |
US3158717A (en) | 1962-07-18 | 1964-11-24 | Gen Electric | Electric circuit breaker including stop means for limiting movement of a toggle linkage |
US3197582A (en) | 1962-07-30 | 1965-07-27 | Fed Pacific Electric Co | Enclosed circuit interrupter |
DE1227978B (en) | 1963-10-04 | 1966-11-03 | Licentia Gmbh | Electrical switchgear, in particular contactor |
US3307002A (en) | 1965-02-04 | 1967-02-28 | Texas Instruments Inc | Multipole circuit breaker |
US3517356A (en) | 1967-07-24 | 1970-06-23 | Terasaki Denki Sangyo Kk | Circuit interrupter |
US3631369A (en) | 1970-04-27 | 1971-12-28 | Ite Imperial Corp | Blowoff means for circuit breaker latch |
US3742401A (en) * | 1972-07-27 | 1973-06-26 | Ite Imperial Corp | Multi pole latch system having means to defeat single pole latching |
US3803455A (en) | 1973-01-02 | 1974-04-09 | Gen Electric | Electric circuit breaker static trip unit with thermal override |
BE819008A (en) | 1973-08-20 | 1974-12-16 | DIFFERENTIAL TRIGGER | |
US3883781A (en) | 1973-09-06 | 1975-05-13 | Westinghouse Electric Corp | Remote controlled circuit interrupter |
US4129762A (en) | 1976-07-30 | 1978-12-12 | Societe Anonyme Dite: Unelec | Circuit-breaker operating mechanism |
US4165453A (en) | 1976-08-09 | 1979-08-21 | Societe Anonyme Dite: Unelec | Switch with device to interlock the switch control if the contacts stick |
US4158119A (en) | 1977-07-20 | 1979-06-12 | Gould Inc. | Means for breaking welds formed between circuit breaker contacts |
US4144513A (en) | 1977-08-18 | 1979-03-13 | Gould Inc. | Anti-rebound latch for current limiting switches |
FR2410353B1 (en) | 1977-11-28 | 1980-08-22 | Merlin Gerin | |
US4166988A (en) | 1978-04-19 | 1979-09-04 | General Electric Company | Compact three-pole circuit breaker |
US4276527A (en) | 1978-06-23 | 1981-06-30 | Merlin Gerin | Multipole electrical circuit breaker with improved interchangeable trip units |
US4220934A (en) | 1978-10-16 | 1980-09-02 | Westinghouse Electric Corp. | Current limiting circuit breaker with integral magnetic drive device housing and contact arm stop |
US4255732A (en) | 1978-10-16 | 1981-03-10 | Westinghouse Electric Corp. | Current limiting circuit breaker |
US4259651A (en) | 1978-10-16 | 1981-03-31 | Westinghouse Electric Corp. | Current limiting circuit interrupter with improved operating mechanism |
US4375022A (en) | 1979-03-23 | 1983-02-22 | Alsthom-Unelec | Circuit breaker fitted with a device for indicating a short circuit |
US4263492A (en) | 1979-09-21 | 1981-04-21 | Westinghouse Electric Corp. | Circuit breaker with anti-bounce mechanism |
US4297663A (en) | 1979-10-26 | 1981-10-27 | General Electric Company | Circuit breaker accessories packaged in a standardized molded case |
US4375021A (en) | 1980-01-31 | 1983-02-22 | General Electric Company | Rapid electric-arc extinguishing assembly in circuit-breaking devices such as electric circuit breakers |
US4383146A (en) | 1980-03-12 | 1983-05-10 | Merlin Gerin | Four-pole low voltage circuit breaker |
US4393283A (en) | 1980-04-10 | 1983-07-12 | Hosiden Electronics Co., Ltd. | Jack with plug actuated slide switch |
US4301342A (en) | 1980-06-23 | 1981-11-17 | General Electric Company | Circuit breaker condition indicator apparatus |
US4392036A (en) | 1980-08-29 | 1983-07-05 | Siemens Aktiengesellschaft | Low-voltage protective circuit breaker with a forked locking lever |
US4368444A (en) | 1980-08-29 | 1983-01-11 | Siemens Aktiengesellschaft | Low-voltage protective circuit breaker with locking lever |
US4376270A (en) | 1980-09-15 | 1983-03-08 | Siemens Aktiengesellschaft | Circuit breaker |
US4541032A (en) | 1980-10-21 | 1985-09-10 | B/K Patent Development Company, Inc. | Modular electrical shunts for integrated circuit applications |
US4479143A (en) | 1980-12-16 | 1984-10-23 | Sharp Kabushiki Kaisha | Color imaging array and color imaging device |
DE3047360C2 (en) | 1980-12-16 | 1987-08-20 | Karl Pfisterer Elektrotechnische Spezialartikel Gmbh & Co Kg, 7000 Stuttgart | Switching strip |
EP0061092B1 (en) | 1981-03-20 | 1983-12-21 | BASF Aktiengesellschaft | Electrophotographic recording material |
US4360852A (en) | 1981-04-01 | 1982-11-23 | Allis-Chalmers Corporation | Overcurrent and overtemperature protective circuit for power transistor system |
US4409573A (en) | 1981-04-23 | 1983-10-11 | Siemens-Allis, Inc. | Electromagnetically actuated anti-rebound latch |
US4467297A (en) | 1981-05-07 | 1984-08-21 | Merlin Gerin | Multi-pole circuit breaker with interchangeable magneto-thermal tripping unit |
EP0064906B1 (en) | 1981-05-07 | 1984-12-19 | Merlin Gerin | Multi-pole circuit breaker with an interchangeable thermal-magnetic trip unit |
US4401872A (en) | 1981-05-18 | 1983-08-30 | Merlin Gerin | Operating mechanism of a low voltage electric circuit breaker |
EP0066486B1 (en) | 1981-05-18 | 1985-04-10 | Merlin Gerin | Operating mechanism for a low-voltage multi-pole circuit breaker |
FR2512582B1 (en) | 1981-09-10 | 1983-10-28 | Merlin Gerin | |
EP0076719B1 (en) | 1981-10-05 | 1985-04-10 | Merlin Gerin | Multipole circuit breaker with removable trip unit |
US4468645A (en) | 1981-10-05 | 1984-08-28 | Merlin Gerin | Multipole circuit breaker with removable trip unit |
US4435690A (en) | 1982-04-26 | 1984-03-06 | Rte Corporation | Primary circuit breaker |
US4658322A (en) | 1982-04-29 | 1987-04-14 | The United States Of America As Represented By The Secretary Of The Navy | Arcing fault detector |
US4470027A (en) | 1982-07-16 | 1984-09-04 | Eaton Corporation | Molded case circuit breaker with improved high fault current interruption capability |
US4546224A (en) | 1982-10-07 | 1985-10-08 | Sace S.P.A. Costruzioni Elettromeccaniche | Electric switch in which the control lever travel is arrested if the contacts become welded together |
US4492941A (en) | 1983-02-18 | 1985-01-08 | Heinemann Electric Company | Circuit breaker comprising parallel connected sections |
EP0117094A1 (en) | 1983-02-18 | 1984-08-29 | Heinemann Electric Company | A circuit breaker comprising parallel connected sections |
US4488133A (en) | 1983-03-28 | 1984-12-11 | Siemens-Allis, Inc. | Contact assembly including spring loaded cam follower overcenter means |
US4622530A (en) * | 1983-06-02 | 1986-11-11 | General Electric Company | Circuit breaker assembly for high speed manufacture |
US4644438A (en) | 1983-06-03 | 1987-02-17 | Merlin Gerin | Current-limiting circuit breaker having a selective solid state trip unit |
US4595812A (en) | 1983-09-21 | 1986-06-17 | Mitsubishi Denki Kabushiki Kaisha | Circuit interrupter with detachable optional accessories |
EP0140761B1 (en) | 1983-10-21 | 1987-09-09 | Merlin Gerin | Operating mechanism for a low-voltage multi-pole circuit breaker |
FR2553943B1 (en) | 1983-10-24 | 1986-04-11 | Merlin Gerin | RESIDUAL DIFFERENTIAL DEVICE PROVIDED WITH A DEVICE FOR MONITORING THE ELECTRONIC POWER SOURCE |
US4562419A (en) | 1983-12-22 | 1985-12-31 | Siemens Aktiengesellschaft | Electrodynamically opening contact system |
US4611187A (en) | 1984-02-15 | 1986-09-09 | General Electric Company | Circuit breaker contact arm latch mechanism for eliminating contact bounce |
US4550300A (en) | 1984-05-10 | 1985-10-29 | General Electric Company | Latch release mechanism for molded case electric circuit breakers |
US4550360A (en) | 1984-05-21 | 1985-10-29 | General Electric Company | Circuit breaker static trip unit having automatic circuit trimming |
US4672501A (en) | 1984-06-29 | 1987-06-09 | General Electric Company | Circuit breaker and protective relay unit |
US4589052A (en) | 1984-07-17 | 1986-05-13 | General Electric Company | Digital I2 T pickup, time bands and timing control circuits for static trip circuit breakers |
US4622444A (en) | 1984-07-20 | 1986-11-11 | Fuji Electric Co., Ltd. | Circuit breaker housing and attachment box |
US4616198A (en) | 1984-08-14 | 1986-10-07 | General Electric Company | Contact arrangement for a current limiting circuit breaker |
US4649247A (en) | 1984-08-23 | 1987-03-10 | Siemens Aktiengesellschaft | Contact assembly for low-voltage circuit breakers with a two-arm contact lever |
EP0174904B1 (en) | 1984-08-23 | 1988-05-04 | Siemens Aktiengesellschaft | Contact device for a low voltage circuit breaker with a two-armed contact lever |
US4631625A (en) | 1984-09-27 | 1986-12-23 | Siemens Energy & Automation, Inc. | Microprocessor controlled circuit breaker trip unit |
US4612430A (en) | 1984-12-21 | 1986-09-16 | Square D Company | Anti-rebound latch |
US4682264A (en) | 1985-02-25 | 1987-07-21 | Merlin Gerin | Circuit breaker with digital solid-state trip unit fitted with a calibration circuit |
US4689712A (en) | 1985-02-25 | 1987-08-25 | Merlin Gerin S.A. | Circuit breaker with solid-state trip unit with a digital processing system shunted by an analog processing system |
US4694373A (en) | 1985-02-25 | 1987-09-15 | Merlin Gerin | Circuit breaker with digital solid-state trip unit with optional functions |
US4710845A (en) | 1985-02-25 | 1987-12-01 | Merlin Gerin S.A. | Circuit breaker with solid-state trip unit with sampling and latching at the last signal peak |
US4717985A (en) | 1985-02-25 | 1988-01-05 | Merlin Gerin S.A. | Circuit breaker with digitized solid-state trip unit with inverse time tripping function |
EP0196241B2 (en) | 1985-02-27 | 1996-09-04 | Merlin Gerin | Single pole and neutral differential circuit breaker |
US4642431A (en) | 1985-07-18 | 1987-02-10 | Westinghouse Electric Corp. | Molded case circuit breaker with a movable electrical contact positioned by a camming spring loaded clip |
EP0224396B1 (en) | 1985-10-31 | 1991-06-05 | Merlin Gerin | Control mechanism for a low-tension electric circuit breaker |
US4764650A (en) | 1985-10-31 | 1988-08-16 | Merlin Gerin | Molded case circuit breaker with removable arc chutes and disengageable transmission system between the operating mechanism and the poles |
FR2592998B1 (en) | 1986-01-10 | 1988-03-18 | Merlin Gerin | TEST CIRCUIT FOR AN ELECTRONIC TRIGGER OF A DIFFERENTIAL CIRCUIT BREAKER. |
EP0235479B1 (en) | 1986-01-10 | 1993-08-04 | Merlin Gerin | Static tripping unit with test circuit for electrical circuit interruptor |
US4768007A (en) | 1986-02-28 | 1988-08-30 | Merlin Gerin | Current breaking device with solid-state switch and built-in protective circuit breaker |
EP0239460B1 (en) | 1986-03-26 | 1992-06-03 | Merlin Gerin | Electric switch having an ameliorated dielectric strength |
US4733321A (en) | 1986-04-30 | 1988-03-22 | Merlin Gerin | Solid-state instantaneous trip device for a current limiting circuit breaker |
US4780786A (en) | 1986-08-08 | 1988-10-25 | Merlin Gerin | Solid-state trip unit of an electrical circuit breaker with contact wear indicator |
EP0258090B1 (en) | 1986-08-08 | 1992-03-25 | Merlin Gerin | Static tripping device for a circuit breaker with electronic contact wear indication |
EP0264314B1 (en) | 1986-09-23 | 1993-01-20 | Merlin Gerin | Multipole differential circuit breaker with a modular assembly |
EP0264313B1 (en) | 1986-09-23 | 1992-01-29 | Merlin Gerin | Electric differential-protection apparatus with a test circuit |
US4675481A (en) | 1986-10-09 | 1987-06-23 | General Electric Company | Compact electric safety switch |
US4733211A (en) | 1987-01-13 | 1988-03-22 | General Electric Company | Molded case circuit breaker crossbar assembly |
EP0283358B1 (en) | 1987-03-09 | 1991-11-27 | Merlin Gerin | Static trip unit comprising a circuit for detecting the residual current |
EP0283189B1 (en) | 1987-03-12 | 1992-12-16 | Merlin Gerin Limited | Electrical ring main unit |
EP0313106B1 (en) | 1987-03-12 | 1992-12-16 | Merlin Gerin Limited | Electrical switchgear |
US4736174A (en) * | 1987-04-23 | 1988-04-05 | General Electric Company | Molded case circuit breaker operating mechanism |
EP0295155B1 (en) | 1987-05-11 | 1992-10-28 | Merlin Gerin | Modular breaker with an auxiliary tripping block associated with a multipole breaker block |
EP0291374B1 (en) | 1987-05-11 | 1992-10-21 | Merlin Gerin | Trip bar for a multipole breaker block associated with an auxiliary trip block |
US4916420A (en) | 1987-06-09 | 1990-04-10 | Merlin Gerin | Operating mechanism of a miniature electrical circuit breaker |
EP0295158B1 (en) | 1987-06-09 | 1992-07-22 | Merlin Gerin | Control mechanism for a miniature electric switch |
US4926282A (en) | 1987-06-12 | 1990-05-15 | Bicc Public Limited Company | Electric circuit breaking apparatus |
US4883931A (en) | 1987-06-18 | 1989-11-28 | Merlin Gerin | High pressure arc extinguishing chamber |
US4900882A (en) | 1987-07-02 | 1990-02-13 | Merlin Gerin | Rotating arc and expansion circuit breaker |
US4789848A (en) * | 1987-09-03 | 1988-12-06 | General Electric Company | Molded case circuit breaker latch and operating mechanism assembly |
US4952897A (en) | 1987-09-25 | 1990-08-28 | Merlin Gerin | Limiting circuit breaker |
EP0309923B1 (en) | 1987-10-01 | 1994-12-14 | CGE- COMPAGNIA GENERALE ELETTROMECCANICA S.p.A. | Improved contact arrangement for a current limiting circuit breaker adapted to be actuated both manually and by an actuating electromagnet |
US4916421A (en) | 1987-10-01 | 1990-04-10 | General Electric Company | Contact arrangement for a current limiting circuit breaker |
EP0313422B1 (en) | 1987-10-09 | 1992-04-22 | Merlin Gerin | Static tripping device for a circuit breaker in a cast case |
US4910485A (en) | 1987-10-26 | 1990-03-20 | Merlin Gerin | Multiple circuit breaker with double break rotary contact |
EP0314540B1 (en) | 1987-10-26 | 1993-09-29 | Merlin Gerin | Opening device for a multipole circuit breaker with a rotating contact bridge |
US4950855A (en) | 1987-11-04 | 1990-08-21 | Merlin Gerin | Self-expansion electrical circuit breaker with variable extinguishing chamber volume |
US4884047A (en) | 1987-12-10 | 1989-11-28 | Merlin Gerin | High rating multipole circuit breaker formed by two adjoined molded cases |
US4958135A (en) | 1987-12-10 | 1990-09-18 | Merlin Gerin | High rating molded case multipole circuit breaker |
US4937706A (en) | 1987-12-10 | 1990-06-26 | Merlin Gerin | Ground fault current protective device |
US4831221A (en) | 1987-12-16 | 1989-05-16 | General Electric Company | Molded case circuit breaker auxiliary switch unit |
DE3802184C2 (en) | 1988-01-26 | 1990-05-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | |
US4914541A (en) | 1988-01-28 | 1990-04-03 | Merlin Gerin | Solid-state trip device comprising an instantaneous tripping circuit independent from the supply voltage |
US4939492A (en) | 1988-01-28 | 1990-07-03 | Merlin Gerin | Electromagnetic trip device with tripping threshold adjustment |
US4935590A (en) | 1988-03-01 | 1990-06-19 | Merlin Gerin | Gas-blast circuit breaker |
EP0331586B1 (en) | 1988-03-04 | 1993-07-07 | Merlin Gerin | Actuating mechanism of an auxiliary tripping block for a modular circuit breaker |
EP0337900B1 (en) | 1988-04-14 | 1994-06-01 | Merlin Gerin | High sensitivity electromagnetic tripper |
EP0342133B1 (en) | 1988-05-13 | 1993-08-11 | Merlin Gerin | Operating mechanism for a miniature circuit breaker having a contact-welding indicator |
US4943691A (en) | 1988-06-10 | 1990-07-24 | Merlin Gerin | Low-voltage limiting circuit breaker with leaktight extinguishing chamber |
US4983788A (en) | 1988-06-23 | 1991-01-08 | Cge Compagnia Generale Electtromeccanica S.P.A. | Electric switch mechanism for relays and contactors |
US4870531A (en) | 1988-08-15 | 1989-09-26 | General Electric Company | Circuit breaker with removable display and keypad |
EP0367690B1 (en) | 1988-11-04 | 1993-12-29 | Merlin Gerin | Tripping circuit with test circuit and selfprotected remote control for opening |
US4965543A (en) | 1988-11-16 | 1990-10-23 | Merin Gerin | Magnetic trip device with wide tripping threshold setting range |
EP0371887B1 (en) | 1988-11-28 | 1994-01-26 | Merlin Gerin | Modular breaker with an auxiliary tripping block with independent or automatic resetting |
EP0375568B1 (en) | 1988-12-14 | 1995-01-11 | Merlin Gerin | Modulator assembly device for a multipole differential circuit breaker |
DE3843277A1 (en) | 1988-12-22 | 1990-06-28 | Bosch Gmbh Robert | Power output stage for electromagnetic loads |
US5095183A (en) | 1989-01-17 | 1992-03-10 | Merlin Gerin | Gas-blast electrical circuit breaker |
US4884164A (en) | 1989-02-01 | 1989-11-28 | General Electric Company | Molded case electronic circuit interrupter |
US5001313A (en) | 1989-02-27 | 1991-03-19 | Merlin Gerin | Rotating arc circuit breaker with centrifugal extinguishing gas effect |
US5057655A (en) | 1989-03-17 | 1991-10-15 | Merlin Gerin | Electrical circuit breaker with self-extinguishing expansion and insulating gas |
US5200724A (en) | 1989-03-30 | 1993-04-06 | Westinghouse Electric Corp. | Electrical circuit breaker operating handle block |
US5004878A (en) | 1989-03-30 | 1991-04-02 | General Electric Company | Molded case circuit breaker movable contact arm arrangement |
US4951019A (en) | 1989-03-30 | 1990-08-21 | Westinghouse Electric Corp. | Electrical circuit breaker operating handle block |
EP0394144B1 (en) | 1989-04-20 | 1994-12-28 | Merlin Gerin | Auxiliary switch with manual test for modular circuit breaker |
GB2233155A (en) | 1989-04-27 | 1991-01-02 | Delta Circuits Protection | Electric circuit breaker |
US5030804A (en) | 1989-04-28 | 1991-07-09 | Asea Brown Boveri Ab | Contact arrangement for electric switching devices |
EP0394922A1 (en) | 1989-04-28 | 1990-10-31 | Asea Brown Boveri Ab | Contact arrangement for electric switching devices |
US5077627A (en) | 1989-05-03 | 1991-12-31 | Merlin Gerin | Solid-state trip device for a protective circuit breaker of a three-phase mains system, enabling the type of fault to be detected |
EP0399282B1 (en) | 1989-05-25 | 1995-08-30 | BTICINO S.r.l. | An automatic magneto-thermal protection switch having a high breaking capacity |
US5029301A (en) | 1989-06-26 | 1991-07-02 | Merlin Gerin | Limiting circuit breaker equipped with an electromagnetic effect contact fall delay device |
EP0407310B1 (en) | 1989-07-03 | 1993-12-01 | Merlin Gerin | Static trip unit with a desensibilisation system for earth protection |
US4943888A (en) | 1989-07-10 | 1990-07-24 | General Electric Company | Electronic circuit breaker using digital circuitry having instantaneous trip capability |
US5210385A (en) | 1989-07-26 | 1993-05-11 | Merlin Gerin | Low voltage circuit breaker with multiple contacts for high currents |
US5138121A (en) | 1989-08-16 | 1992-08-11 | Siemens Aktiengesellschaft | Auxiliary contact mounting block |
US5132865A (en) | 1989-09-13 | 1992-07-21 | Merlin Gerin | Ultra high-speed circuit breaker with galvanic isolation |
US5115371A (en) | 1989-09-13 | 1992-05-19 | Merlin Gerin | Circuit breaker comprising an electronic trip device |
US5155315A (en) | 1989-12-11 | 1992-10-13 | Merlin Gerin | Hybrid medium voltage circuit breaker |
US5083081A (en) | 1990-03-01 | 1992-01-21 | Merlin Gerin | Current sensor for an electronic trip device |
EP0452230B1 (en) | 1990-04-09 | 1994-12-07 | Merlin Gerin | Driving mechanism for circuit breaker |
US5103198A (en) | 1990-05-04 | 1992-04-07 | Merlin Gerin | Instantaneous trip device of a circuit breaker |
US5178504A (en) | 1990-05-29 | 1993-01-12 | Cge Compagnia Generale Elettromeccanica Spa | Plugged fastening device with snap-action locking for control and/or signalling units |
US5153802A (en) | 1990-06-12 | 1992-10-06 | Merlin Gerin | Static switch |
US5166483A (en) | 1990-06-14 | 1992-11-24 | Merlin Gerin | Electrical circuit breaker with rotating arc and self-extinguishing expansion |
US5187339A (en) | 1990-06-26 | 1993-02-16 | Merlin Gerin | Gas insulated high-voltage circuit breaker with pneumatic operating mechanism |
US5347097A (en) | 1990-08-01 | 1994-09-13 | Merlin Gerin | Electrical circuit breaker with rotating arc and self-extinguishing expansion |
US5120921A (en) | 1990-09-27 | 1992-06-09 | Siemens Energy & Automation, Inc. | Circuit breaker including improved handle indication of contact position |
US5331500A (en) | 1990-12-26 | 1994-07-19 | Merlin Gerin | Circuit breaker comprising a card interfacing with a trip device |
US5262744A (en) | 1991-01-22 | 1993-11-16 | General Electric Company | Molded case circuit breaker multi-pole crossbar assembly |
US5140115A (en) | 1991-02-25 | 1992-08-18 | General Electric Company | Circuit breaker contacts condition indicator |
US5184717A (en) | 1991-05-29 | 1993-02-09 | Westinghouse Electric Corp. | Circuit breaker with welded contacts |
US5239150A (en) | 1991-06-03 | 1993-08-24 | Merlin Gerin | Medium voltage circuit breaker with operating mechanism providing reduced operating energy |
US5475558A (en) | 1991-07-09 | 1995-12-12 | Merlin Gerin | Electrical power distribution device with isolation monitoring |
US5357394A (en) | 1991-10-10 | 1994-10-18 | Merlin Gerin | Circuit breaker with selective locking |
FR2682531B1 (en) | 1991-10-15 | 1993-11-26 | Merlin Gerin | MULTIPOLAR CIRCUIT BREAKER WITH SINGLE POLE BLOCKS. |
US5298874A (en) | 1991-10-15 | 1994-03-29 | Merlin Gerin | Range of molded case low voltage circuit breakers |
US5281776A (en) | 1991-10-15 | 1994-01-25 | Merlin Gerin | Multipole circuit breaker with single-pole units |
US5280144A (en) | 1991-10-17 | 1994-01-18 | Merlin Gerin | Hybrid circuit breaker with axial blowout coil |
US5347096A (en) | 1991-10-17 | 1994-09-13 | Merlin Gerin | Electrical circuit breaker with two vacuum cartridges in series |
US5341191A (en) | 1991-10-18 | 1994-08-23 | Eaton Corporation | Molded case current limiting circuit breaker |
US5260533A (en) | 1991-10-18 | 1993-11-09 | Westinghouse Electric Corp. | Molded case current limiting circuit breaker |
US5581219A (en) | 1991-10-24 | 1996-12-03 | Fuji Electric Co., Ltd. | Circuit breaker |
US5357066A (en) | 1991-10-29 | 1994-10-18 | Merlin Gerin | Operating mechanism for a four-pole circuit breaker |
US5317471A (en) | 1991-11-13 | 1994-05-31 | Gerin Merlin | Process and device for setting a thermal trip device with bimetal strip |
US5350892A (en) | 1991-11-20 | 1994-09-27 | Gec Alsthom Sa | Medium tension circuit-breaker for indoor or outdoor use |
US5357068A (en) | 1991-11-20 | 1994-10-18 | Gec Alsthom Sa | Sulfur hexafluoride isolating circuit-breaker and use thereof in prefabricated stations, substations, and bays |
US5172087A (en) | 1992-01-31 | 1992-12-15 | General Electric Company | Handle connector for multi-pole circuit breaker |
US5296660A (en) | 1992-02-07 | 1994-03-22 | Merlin Gerin | Auxiliary shunt multiple contact breaking device |
US5300907A (en) | 1992-02-07 | 1994-04-05 | Merlin Gerin | Operating mechanism of a molded case circuit breaker |
EP0555158B1 (en) | 1992-02-07 | 1996-12-27 | Schneider Electric Sa | Operating mechanism for a moulded case circuit breaker |
US5310971A (en) | 1992-03-13 | 1994-05-10 | Merlin Gerin | Molded case circuit breaker with contact bridge slowed down at the end of repulsion travel |
EP0560697B1 (en) | 1992-03-13 | 1996-09-04 | Schneider Electric Sa | Moulded-case circuit breaker with retardation at the end of the contact bridges repulsion movement |
US5313180A (en) | 1992-03-13 | 1994-05-17 | Merlin Gerin | Molded case circuit breaker contact |
US5334808A (en) | 1992-04-23 | 1994-08-02 | Merlin Gerin | Draw-out molded case circuit breaker |
EP0567416B1 (en) | 1992-04-23 | 1997-07-16 | Schneider Electric Sa | Mechanic interlocking device of two moulded case circuit breakers |
US5198956A (en) | 1992-06-19 | 1993-03-30 | Square D Company | Overtemperature sensing and signaling circuit |
US5373130A (en) | 1992-06-30 | 1994-12-13 | Merlin Gerin | Self-extinguishing expansion switch or circuit breaker |
US5552755A (en) | 1992-09-11 | 1996-09-03 | Eaton Corporation | Circuit breaker with auxiliary switch actuated by cascaded actuating members |
US5379013A (en) | 1992-09-28 | 1995-01-03 | Merlin Gerin | Molded case circuit breaker with interchangeable trip units |
US5457295A (en) | 1992-09-28 | 1995-10-10 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker |
US5440088A (en) | 1992-09-29 | 1995-08-08 | Merlin Gerin | Molded case circuit breaker with auxiliary contacts |
US5438176A (en) | 1992-10-13 | 1995-08-01 | Merlin Gerin | Three-position switch actuating mechanism |
US5483212A (en) | 1992-10-14 | 1996-01-09 | Klockner-Moeller Gmbh | Overload relay to be combined with contactors |
EP0595730B1 (en) | 1992-10-29 | 1997-08-06 | Schneider Electric Sa | Circuit-breaker with draw-out auxiliary circuit blocks |
FR2697670B1 (en) | 1992-11-04 | 1994-12-02 | Merlin Gerin | Relay constituting a mechanical actuator to trip a circuit breaker or a differential switch. |
US5296664A (en) | 1992-11-16 | 1994-03-22 | Westinghouse Electric Corp. | Circuit breaker with positive off protection |
FR2699324A1 (en) | 1992-12-11 | 1994-06-17 | Gen Electric | Auxiliary compact switch for circuit breaker - has casing placed inside circuit breaker box and housing lever actuated by button of microswitch and driven too its original position by spring |
US5510761A (en) | 1993-01-11 | 1996-04-23 | Klockner Moeller Gmbh | Contact system for a current limiting unit |
US5504284A (en) | 1993-02-03 | 1996-04-02 | Merlin Gerin | Device for mechanical and electrical lockout of a remote control unit for a modular circuit breaker |
US5504290A (en) | 1993-02-16 | 1996-04-02 | Merlin Gerin | Remote controlled circuit breaker with recharging cam |
US5493083A (en) | 1993-02-16 | 1996-02-20 | Merlin Gerin | Rotary control device of a circuit breaker |
US5477016A (en) | 1993-02-16 | 1995-12-19 | Merlin Gerin | Circuit breaker with remote control and disconnection function |
US5451729A (en) | 1993-03-17 | 1995-09-19 | Ellenberger & Poensgen Gmbh | Single or multipole circuit breaker |
US5534832A (en) | 1993-03-25 | 1996-07-09 | Telemecanique | Switch |
US5450048A (en) | 1993-04-01 | 1995-09-12 | Merlin Gerin | Circuit breaker comprising a removable calibrating device |
US5479143A (en) | 1993-04-07 | 1995-12-26 | Merlin Gerin | Multipole circuit breaker with modular assembly |
US5469121A (en) | 1993-04-07 | 1995-11-21 | Merlin Gerin | Multiple current-limiting circuit breaker with electrodynamic repulsion |
EP0619591B1 (en) | 1993-04-08 | 1997-03-12 | Schneider Electric Sa | Magnetothermal trip unit |
US5467069A (en) | 1993-04-16 | 1995-11-14 | Merlin Gerin | Device for adjusting the tripping threshold of a multipole circuit breaker |
US5512720A (en) | 1993-04-16 | 1996-04-30 | Merlin Gerin | Auxiliary trip device for a circuit breaker |
US5449871A (en) | 1993-04-20 | 1995-09-12 | Merlin Gerin | Operating mechanism of a multipole electrical circuit breaker |
DE4419240C2 (en) | 1993-06-07 | 1997-06-05 | Weber Ag | Single or multi-pole housing to accommodate NH fuses |
US5361052A (en) | 1993-07-02 | 1994-11-01 | General Electric Company | Industrial-rated circuit breaker having universal application |
US5534840A (en) | 1993-07-02 | 1996-07-09 | Schneider Electric Sa | Control and/or indicator unit |
US5604656A (en) | 1993-07-06 | 1997-02-18 | J. H. Fenner & Co., Limited | Electromechanical relays |
US5534674A (en) | 1993-11-02 | 1996-07-09 | Klockner-Moeller Gmbh | Current limiting contact system for circuit breakers |
US5784233A (en) | 1994-01-06 | 1998-07-21 | Schneider Electric Sa | Differential protection device of a power transformer |
FR2714771B1 (en) | 1994-01-06 | 1996-02-02 | Merlin Gerin | Differential protection device for a power transformer. |
EP0665569B1 (en) | 1994-01-26 | 2000-03-22 | Schneider Electric Industries SA | Diffential trip unit |
US5543595A (en) | 1994-02-02 | 1996-08-06 | Klockner-Moeller Gmbh | Circuit breaker with a blocking mechanism and a blocking mechanism for a circuit breaker |
US5485343A (en) | 1994-02-22 | 1996-01-16 | General Electric Company | Digital circuit interrupter with battery back-up facility |
US5424701A (en) | 1994-02-25 | 1995-06-13 | General Electric | Operating mechanism for high ampere-rated circuit breakers |
US5539168A (en) | 1994-03-11 | 1996-07-23 | Klockner-Moeller Gmbh | Power circuit breaker having a housing structure with accessory equipment for the power circuit breaker |
USD367265S (en) | 1994-07-15 | 1996-02-20 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker for distribution |
EP0700140A1 (en) | 1994-09-01 | 1996-03-06 | ABB ELETTROCONDUTTURE S.p.A. | Electronic base circuit for overload relays depending from the line voltage |
US5515018A (en) | 1994-09-28 | 1996-05-07 | Siemens Energy & Automation, Inc. | Pivoting circuit breaker load terminal |
US5519561A (en) | 1994-11-08 | 1996-05-21 | Eaton Corporation | Circuit breaker using bimetal of thermal-magnetic trip to sense current |
US5534835A (en) | 1995-03-30 | 1996-07-09 | Siemens Energy & Automation, Inc. | Circuit breaker with molded cam surfaces |
US5608367A (en) | 1995-11-30 | 1997-03-04 | Eaton Corporation | Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap |
EP0889498A3 (en) | 1997-07-02 | 1999-06-16 | AEG Niederspannungstechnik GmbH & Co. KG | Rotary contact assembly for high ampere-rated circuit breakers |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6778048B1 (en) | 2003-05-13 | 2004-08-17 | General Electric Company | Circuit breaker interface mechanism for bell alarm switch |
US20040227601A1 (en) * | 2003-05-13 | 2004-11-18 | General Electric Company | Circuit breaker interface mechanism for auxiliary switch accessory |
US20040227598A1 (en) * | 2003-05-13 | 2004-11-18 | Ronald Ciarcia | Phase-to-phase isolation of cassette type circuit breakers |
US20040227602A1 (en) * | 2003-05-13 | 2004-11-18 | Ronald Ciarcia | Circuit breaker magnetic trip assembly |
US6842096B2 (en) | 2003-05-13 | 2005-01-11 | General Electric Company | Circuit breaker magnetic trip assembly |
US6903635B2 (en) | 2003-05-13 | 2005-06-07 | General Electric Company | Circuit breaker interface mechanism for auxiliary switch accessory |
US6750743B1 (en) | 2003-05-13 | 2004-06-15 | General Electric Company | Integrated thermal and magnetic trip unit |
US6933814B2 (en) | 2003-05-13 | 2005-08-23 | General Electric Company | Phase-to-phase isolation of cassette type circuit breakers |
US6984787B2 (en) * | 2003-07-11 | 2006-01-10 | Yazaki Corporation | Shield-processing structure of shielded cable |
US20050056452A1 (en) * | 2003-07-11 | 2005-03-17 | Yazaki Corporation | Shield-processing structure of shielded cable |
US20050051414A1 (en) * | 2003-09-10 | 2005-03-10 | General Electric Company | Circuit breaker handle block |
US6985059B2 (en) | 2003-09-10 | 2006-01-10 | General Electric Company | Circuit breaker handle block |
US6930577B2 (en) | 2003-09-15 | 2005-08-16 | General Electric Company | Circuit breaker lug cover and gasket |
US20050057333A1 (en) * | 2003-09-15 | 2005-03-17 | General Electric Company | Circuit breaker lug cover and gasket |
CN101145474B (en) * | 2006-04-07 | 2010-12-15 | 汉斯科技有限公司 | Residual electric current breaker |
US8350168B2 (en) | 2010-06-30 | 2013-01-08 | Schneider Electric USA, Inc. | Quad break modular circuit breaker interrupter |
WO2012120327A1 (en) | 2011-03-07 | 2012-09-13 | Larsen & Toubro Limited | An enhanced latch meachanism for use in circuit breakers |
US20130228428A1 (en) * | 2012-03-02 | 2013-09-05 | Siemens Aktiengesellshaft | Circuit breaker latching mechanism |
US9171684B2 (en) * | 2012-03-02 | 2015-10-27 | Siemens Aktiengesellschaft | Circuit breaker latching mechanism |
US20150035628A1 (en) * | 2012-03-12 | 2015-02-05 | Siemens Aktiengesellschaft | Circuit breaker trip blocking apparatus, systems, and methods of operation |
US9281150B2 (en) * | 2012-03-12 | 2016-03-08 | Siemens Aktiengesellschaft | Circuit breaker trip blocking apparatus, systems, and methods of operation |
US9349560B2 (en) | 2014-02-20 | 2016-05-24 | General Electric Company | Limiter type air circuit breaker with blow open arrangement |
US20220122791A1 (en) * | 2019-07-03 | 2022-04-21 | Ellenberger & Poensgen Gmbh | Circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
PL351090A1 (en) | 2003-03-24 |
WO2001069633A3 (en) | 2002-01-31 |
WO2001069633A2 (en) | 2001-09-20 |
MXPA01011432A (en) | 2002-06-04 |
CN1528005A (en) | 2004-09-08 |
EP1194940A2 (en) | 2002-04-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6218919B1 (en) | Circuit breaker latch mechanism with decreased trip time | |
EP1968093B1 (en) | Electrical switching apparatus, and conductor assembly and shunt assembly therefor | |
US6403909B1 (en) | Trip override for rotary breaker | |
US5694101A (en) | Circuit breaker | |
US6667680B1 (en) | Circuit breaker | |
US5363076A (en) | Circuit breaker having spring biased blade suspension | |
US6590482B2 (en) | Circuit breaker mechanism tripping cam | |
WO1995022164A1 (en) | Contact blade assembly for a circuit breaker | |
US3317867A (en) | Electric circuit breaker with thermalmagnetic tripping allowing for overtravel of the thermal means | |
EP1102297A1 (en) | Circuit breaker rotary contact assembly locking system | |
CN107464729B (en) | Circuit breaker including rotor assembly | |
EP1294005B1 (en) | Improvement in blade assembly for a circuit breaker | |
CA2783232C (en) | Electrical switching apparatus and secondary trip mechanism therefor | |
CA2496456C (en) | Latch for an electrical device | |
US6774749B2 (en) | Trip cross bar and trip armature assembly for a circuit breaker | |
AU740135B2 (en) | Circuit breaker with an anti-lift pivot handle | |
EP0443684B1 (en) | Circuit breaker | |
US6232860B1 (en) | Armature for latching a circuit breaker trip unit | |
US3426301A (en) | Interconnected multipole circuit breaker | |
CN111463081A (en) | Miniature circuit breaker locking and tripping system and method | |
US4521756A (en) | Circuit breaker having increased contact opening velocity at trip operation | |
WO2018212687A1 (en) | An instantaneous tripping device for a miniature circuit breaker and miniature circuit breaker comprising the same | |
US5428329A (en) | Springclip means for a latchable operating mechanism on a circuit breaker | |
JPH0589766A (en) | Thermal-magnetic type trip accelerator of breaker for wiring | |
US5023582A (en) | Molded case circuit breaker compact latch asssembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GENERAL ELECTRIC COMPANY, NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CIARCIA, RONALD;SCHLITZ, LEI ZHANG;DIVINCENZO, GREGORY;AND OTHERS;REEL/FRAME:010877/0327 Effective date: 20000517 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Expired due to failure to pay maintenance fee |
Effective date: 20050417 |